For more info, check here: http://playground.ph/2010/10/23/blizzard-to-offer-prepaid-game-cards-for-starcraft-2/
I just heard this news today out of Blizzcon 2010, Blizzard is offering prepaid cards for Starcraft 2!
Honestly, the price point of 3,500 PHP was a little ridiculous for the game (considering other PC games here cost about 1,200++ PHP) so even if I wanted to buy another copy to play with other gamers here in the house, I just couldn't justify the price. But with this new pricing plan in place, I think there will be more players who will get to try Starcraft II. It seems really affordable (a 3 day pass only costs about as much as a short taxi ride).